It's worth it for some people. But, yeah, having never played the original, I might give this one a try. Wasn't the original done by some of the old Diablo people?

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ZootedGranny:

"That's the reason my FFL team name is TrentGreenLeadBlock. When you see this mother****er coming around the corner on a block, put your children to bed and batten down the hatch on your girl's snatch, because the same power that destroys defenders can scar the minds of the youth and simultaneously impregnate any woman within sight, live or on television."

A ranger is mostly a master of ranged weapons, however, he can use sword or greatsword in melee combat. The ranger weapons are:

Main Hand: Sword, Axe

Off Hand: Axe, Dagger, Torch, Warhorn

Two-Handed: Greatsword, Longbow, Shortbow

Pets

A ranger has three active pet slots. Outside of combat, or through the use of utility skills, the ranger can swap their active pet. There are 12 different types of pets, including some terrestrial (spiders), some amphibious (lizards), and some aquatic (sharks). Within each type there are subtypes that can influence pets' abilities. For example, a polar bear might have an Icy Roar, while a brown bear might have a Fearsome Roar. A ranger's pet gets its level from its master, which determines their basic attack, armor, and health.Pet Evolution

Pets have customization options. The first of these has to do with a pet's evolution level. Pets evolve up to 20 evolution levels. Each pet type receives automatic bonuses at different evolution levels. For bears, these bonuses might be increased health or increased damage. Pets gain evolution points when the player gains XP while the pet is active. At certain evolution levels, pets will unlock ability slots (up to 4 total). Ability slots can be filled from a list of active pet abilities based on pet type.Pet Controls

In addition to managing his skills, a ranger will be able to manage his pet with limited commands and modes. This will be an interface element for the ranger class. Here are some examples:Modes--Ongoing behavioral settings the ranger can toggle.

The thief has a mixture of melee and ranged weapons. The thief weapons are:

Main Hand: Sword, Dagger, and Pistol

Off Hand: Dagger and Pistol

Two-Handed: Shortbow

Initiative

Initiative is the thief's resource mechanic. A thief has ten points of Initiative that refill at a rate of one point per second both in and out of combat. Skill 1 on their bar is always free, but the other thief weapon skills all cost Initiative instead of having recharge. Thief Heal, Utility, and Elite skills do not cost Initiative and still have a recharge cost.Stealing

Above their skill bar, all thieves have a special skill called Steal that can be used on enemies. It does not actually steal a real item from an opponent, but rather generates an appropriate environmental weapon based on the target. Stealing does not break stealth, and cannot be used often. When a thief steals, it can open up a range of support and control options that are less prominent in his basic skills.Dual Skills

Dual Skills are special skills that thieves acquire in slot 3 of their weapon bar that are based on both weapons they are wielding. A dual skill is determined by both main hand and offhand weapons, and can vary depending on the order. For example, a thief wielding a pistol main hand with dagger offhand (Shadow Strike) will have a different dual skill than a thief wielding a dagger main hand and pistol offhand (Shadow Shot). The shortbow is the one exception to this rule; it does not have a dual skill.Stealth

Stealth has a limited duration and can be broken in various ways. Most stealth is lost when a player attacks through it. Some stealth breaks when the player moves. While in stealth, a player can still take damage and will temporarily appear in the world when they do.Shadow Stepping

Shadow Stepping is a teleport mechanic used by the thief profession to get in and out of battle. A thief may only shadow step where normal movement is possible and may not use it to teleport through a gate or other blocking area.

I forgot to add this last profession, and my favorite profession to play in the original Guild Wars game.

Mechanics

Weapons
A mesmer can use a variety of magical, ranged, and melee weapons, including:

Main Hand: Sword, Scepter
Off Hand: Focus, Pistol, Sword, Torch
Two-Handed: Staff, Greatsword
Confused Condition
The mesmer introduces a new condition to our set called confusion. An enemy with confusion on them takes damage each time they activate a skill. This condition stacks in intensity, so the more confusion an enemy has, the greater the damage.

Shattering
The mesmer has special abilities that can shatter illusions. Shattering will destroy all illusions and create a secondary effect. There are four different shatter skills:

Mind Wrack—Destroys your illusions and does damage to opponents near them.
Cry of Frustration—Destroys your illusions and gives the confused condition to nearby foes.
Diversion—Destroys your illusions and stuns nearby foes.
Reflection—Destroys your illusions and places a barrier around the mesmer, which reflects enemy projectiles.